A four-valve group solenoid valve island

Abstract

The application discloses a four-valve-group electromagnetic valve island, and relates to the technical field of electromagnetic valve islands.The electromagnetic valve island comprises a valve body, an electromagnetic valve assembly, a first pressure transmitter, a second pressure transmitter and a muffler.The first pressure transmitter, a check valve assembly of a first electromagnetic valve and an inlet area of a third electromagnetic valve are communicated through a flow pipeline.The check valve assembly of the third electromagnetic valve, a check valve assembly of a fourth electromagnetic valve and the muffler are communicated through the flow pipeline.The inlet area of the first electromagnetic valve and an inlet area of a second electromagnetic valve are communicated through the flow pipeline.The second pressure transmitter, the check valve assembly of the second electromagnetic valve and the inlet area of the fourth electromagnetic valve are communicated through the flow pipeline.The flow route of liquid or gas in the flow pipeline is changed by opening and closing some valves in the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve, and the switching control of multiple pipelines is realized.The noise generated when the liquid or gas flows in the flow pipeline is reduced through the muffler.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve island technology, specifically a four-valve electromagnetic valve island. Background Technology

[0002] In modern industrial production, the level of automation is constantly increasing. Traditional decentralized valve control methods have many inconveniences. With the development of automated assembly line operations, the demand for technology that can centrally control multiple valves is growing. This demand has led to the emergence of solenoid valve island technology, which can centrally manage and control multiple solenoid valves, adapting to the trend of industrial automation.

[0003] Existing technology CN214662383U discloses a solenoid valve island with one inlet, two outlets, and two rows. The technical solution discloses that "this utility model discloses a solenoid valve island with one inlet, two outlets, and two rows, comprising a valve island body. Drain heads are provided on both sides of the valve island body, and an inlet head is installed in the middle of one end of the valve island body. A valve cover is installed on the top of the valve island body, and a coil component is installed on the valve cover. An integrally structured mounting ear with a stepped groove is provided on both sides of one end of the valve island body. A valve cover component is installed on the valve cover, and a coil component is installed on the valve cover component. The inlet head is installed in the middle of one end of the valve island body, and drain heads are installed on both sides of the valve island body, enabling multi-directional drainage control and facilitating use. A valve cover is bolted to the top of the valve island body, and four coil components are installed on the top of the valve cover, enabling multi-pipeline switching control and increasing the versatility of the device."

[0004] Although existing technology has disclosed a solenoid valve island with one inlet and two outlets in two rows, it still has some shortcomings. Specifically, in actual production operations, the valve core of this solenoid valve island is too simple, making it impossible to accurately control the flow rate through the solenoid valve island. Furthermore, there are no components to provide a buffer for the opening and closing of the valve core, which can easily damage the solenoid valve island and affect its service life. Therefore, there is an urgent need to provide a four-valve solenoid valve island to solve the above problems. This would allow the solenoid valve island to change the flow path of liquids or gases in the pipeline, realize the switching control of multiple pipelines, and improve the accuracy of flow rate control and service life. Summary of the Invention

[0005] The purpose of this invention is to provide a four-valve solenoid valve island to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The solenoid valve island includes a valve body, a solenoid valve assembly, a first pressure transmitter, a second pressure transmitter, and a silencer. A flow path is provided within the valve body. The first pressure transmitter is fixedly connected to the valve body and communicates with the flow path. The second pressure transmitter is fixedly connected to the valve body and communicates with the flow path. The silencer is fixedly connected to the valve body. Four solenoid valve assemblies are provided. Each solenoid valve assembly includes a solenoid valve body, an inlet region, and a check valve assembly. The solenoid valve body is inserted into the valve body and fixedly connected to it. The inlet region and check valve assembly are located within the valve body. The inlet area is connected to the solenoid valve body, and the check valve assembly is snapped into place by the inlet area and the valve body. The four solenoid valves are collectively classified as a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve. The first pressure transmitter, the check valve assembly of the first solenoid valve, and the inlet area of ​​the third solenoid valve are connected through a flow pipeline. The check valve assembly of the third solenoid valve, the check valve assembly of the fourth solenoid valve, and the silencer are connected through a flow pipeline. The inlet areas of the first and second solenoid valves are connected through a flow pipeline. The second pressure transmitter, the check valve assembly of the second solenoid valve, and the inlet area of ​​the fourth solenoid valve are connected through a flow pipeline.

[0008] When the solenoid valve assembly is closed, the inlet area and the check assembly are not connected. When the solenoid valve assembly is open, liquid or gas flows sequentially through the inlet area and the check assembly in the flow path. The check assembly prevents liquid or gas from flowing from the check assembly to the inlet area when the solenoid valve assembly is open and closed. The first pressure transmitter, the check assembly of the first solenoid valve, and the inlet area of ​​the third solenoid valve are connected through the flow path. The check assemblies of the third and fourth solenoid valves and the silencer are also connected through the flow path. The inlet areas of the first and second solenoid valves are connected through the flow path. The circuit is connected, with the second pressure transmitter, the check assembly of the second solenoid valve, and the inlet area of ​​the fourth solenoid valve connected through the flow pipeline. By opening and closing some of the valves in the first, second, third, and fourth solenoid valves, the flow path of liquid or gas in the flow pipeline is changed, realizing multi-pipeline switching control to adapt to different usage scenarios and improve the versatility of the solenoid valve island. The silencer is used to reduce the noise generated when liquid or gas flows in the flow pipeline, providing a quiet working environment for operators. Abnormal noises can be heard in time when equipment malfunctions, improving work safety.

[0009] Furthermore, the circulation pipeline is provided with a first outlet, a second outlet, and a pipeline inlet. The first outlet is connected to a first pressure transmitter, the second outlet is connected to a second pressure transmitter, and the pipeline inlet is connected to the inlet area of ​​the first solenoid valve and the inlet area of ​​the second solenoid valve.

[0010] When the input device supplies liquid or gas to the actuator connected to the first outlet via the solenoid valve island, the first solenoid valve opens, and the second, third, and fourth solenoid valves close. The liquid or gas enters the flow pipeline from the pipeline inlet, passes sequentially through the first solenoid valve, the first pressure transmitter, and the first outlet, and then enters the actuator. When the actuator connected to the first outlet finishes its operation, the third solenoid valve opens, and the first, second, and fourth solenoid valves close. The liquid or gas in the actuator flows out of the solenoid valve island sequentially through the first pressure transmitter, the third solenoid valve, and the silencer. When the input device supplies liquid or gas to the actuator connected to the second outlet via the solenoid valve island, the second solenoid valve opens, and the first, third, and fourth solenoid valves close. Liquid or gas enters the flow pipeline from the inlet, passes through the second solenoid valve, the second pressure transmitter, and the second outlet in sequence, and flows into the actuator. When the actuator connected to the second outlet finishes its operation, the fourth solenoid valve opens, and the first, second, and third solenoid valves close. The liquid or gas in the actuator then flows out of the solenoid valve island through the second pressure transmitter, the fourth solenoid valve, and the silencer in sequence. The first pressure transmitter monitors and provides feedback on the flow rate of liquid or gas from the first solenoid valve to the first outlet, and the second pressure transmitter monitors and provides feedback on the flow rate of liquid or gas from the second solenoid valve to the second outlet. Upon receiving feedback, the transmitter adjusts the current of the first and second solenoid valves to change the opening size of the solenoid valve assembly, thereby controlling the flow rate of liquid or gas when it flows out.

[0011] Furthermore, the flow pipeline is provided with a third outlet and a fourth outlet. The third outlet is connected to the first pressure transmitter, the check assembly of the first solenoid valve, and the inlet area of ​​the third solenoid valve. A first plug is provided at the third outlet, and the first plug is fixedly connected to the valve body. The fourth outlet is connected to the second pressure transmitter, the check assembly of the second solenoid valve, and the inlet area of ​​the fourth solenoid valve. A second plug is provided at the fourth outlet, and the second plug is fixedly connected to the valve body.

[0012] The first and second plugs block the third and fourth outlets respectively, preventing leakage of liquid or gas in the flow pipeline and preventing external impurities from entering and contaminating the liquid or gas. During the factory inspection of the solenoid valve island, a pressure gauge can be connected to measure the pressure of the flow pipeline to ensure safety and stability.

[0013] Furthermore, the solenoid valve body includes a valve cover, a coil component, a stationary iron core, an elastic washer, a flat washer, and a nut. The bottom end of the valve cover is inserted into the upper end face of the valve body, and the valve cover and the valve body are fixedly connected. The upper end of the valve cover is inserted into the coil component. One end of the stationary iron core is sequentially inserted into the coil component and the valve cover. The stationary iron core and the valve cover are welded together. The nut and the other end of the stationary iron core are threaded together. The flat washer is disposed in a groove at the top of the coil component. The elastic washer is disposed between the flat washer and the nut. The nut and the valve cover engage the elastic washer, the flat washer, and the coil component. The inlet area is inserted into the valve cover from the bottom end. Part of the inlet area is fixedly connected to the bottom end of the stationary iron core, and part of the inlet area is slidably connected to the valve cover.

[0014] Elastic washers and flat washers provide cushioning during the opening and closing of the solenoid valve assembly, reducing damage caused by impacts and improving the service life of the solenoid valve island. When the coil component is energized, it generates a magnetic field that attracts some components in the inlet area. At this time, the liquid or gas in the flow pipeline flows through the inlet area to the check assembly, which pushes down some components in the check assembly and then flows into another part of the flow pipeline. By changing the magnitude of the current in the coil component, the opening and closing degree of the solenoid valve assembly is controlled, thereby controlling the flow rate of liquid or gas in the flow pipeline.

[0015] Furthermore, the inlet area includes a core return spring, a moving core, a core seal, a sealing return spring, and a main valve core. One end of the core return spring is fixedly connected to the bottom end of the stationary core, and the other end of the core return spring is inserted into the moving core. The core return spring and the moving core are fixedly connected. The moving core is inserted into the valve cover from the bottom end, and the moving core and the valve cover are slidably connected. The core seal is located inside the bottom end of the moving core, and the core seal is slidably connected. The sealing return spring is located inside the bottom end of the moving core, and one end of the sealing return spring is fixedly connected to the moving core. The other end of the sealing return spring is fixedly connected to the core seal. The main valve core is inserted into the valve cover from the bottom end, and the main valve core and the valve cover are engaged.

[0016] When liquid or gas needs to flow from the inlet area to the check valve assembly, the coil component is energized. Under the pressure of the liquid or gas and the electromagnetic attraction, the moving iron core and the iron core seal are lifted. The liquid or gas in the flow pipeline flows through the inlet area to the check valve assembly. Some parts of the check valve assembly are pushed down under the pressure of the liquid or gas. The liquid or gas flows into the check valve assembly and then flows to other parts through the flow pipeline. When the solenoid valve assembly is closed, the coil component is de-energized, and the iron core return spring and the seal return spring rebound, resetting the moving iron core and the iron core seal respectively. The parts in the check valve assembly also automatically reset. At this time, the liquid or gas in the flow pipeline cannot flow into the inlet area through the check valve assembly.

[0017] Furthermore, a vertical flow channel is provided at the bottom of the main valve core, the upper inlet of the flow channel is blocked by an iron core seal, and the lower inlet of the flow channel is blocked by a check valve assembly.

[0018] Furthermore, through holes are provided on the surrounding walls of the main valve core.

[0019] The flow channels and through-holes allow liquids or gases in the flow pipeline to flow from the inlet area to the check valve assembly when the solenoid valve assembly is energized and opened. The liquids or gases then push down the components in the check valve assembly and flow into another part of the flow pipeline, thereby changing the flow path of the liquids or gases in the flow pipeline and allowing them to flow out from the designated outlet of the flow pipeline.

[0020] Furthermore, the check assembly includes a check seal, a check valve core, a check spring, and a check washer. The check washer is disposed at the bottom end of the flow path. One end of the check spring is fixedly connected to the upper end face of the check washer, and the other end of the check spring is fixedly connected to the lower end face of the shoulder of the check valve core. The bottom end of the check valve core passes through the check washer, and the check valve core and the check washer are slidably connected. The check seal is disposed inside the upper end of the check valve core, and the upper end face of the check seal blocks the lower inlet of the flow path.

[0021] When liquid or gas needs to flow into the check valve assembly from the inlet area, the coil component is energized. The liquid or gas in the flow pipeline enters the main valve core through the through hole. Under the pressure of the liquid or gas and the electromagnetic attraction, the moving iron core and the iron core seal are lifted up, and then flow to the check valve core through the upper inlet of the flow channel. The check valve core is pushed down under the pressure of the liquid or gas, the check spring is compressed, and the inlet at the lower end of the flow channel is opened, allowing the liquid or gas to flow to other components through the flow pipeline. When the solenoid valve assembly is closed, the coil component is de-energized, and the check spring, the iron core return spring, and the seal return spring rebound, resetting the check valve core, the moving iron core, and the iron core seal respectively, blocking both the upper and lower inlets of the flow channel. At this time, the liquid or gas in the flow pipeline cannot flow into the inlet area through the check valve assembly.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention changes the flow path of liquid or gas in the flow pipeline by opening and closing some of the valves in the first, second, third, and fourth solenoid valves, thereby realizing the switching control of multiple pipelines to adapt to different application scenarios and improve the versatility of the solenoid valve island.

[0024] 2. The first and second pressure transmitters of this invention monitor and provide feedback on the flow rate of the liquid or gas. After receiving the feedback, the operator adjusts the current of the first, second, third, and fourth solenoid valves to change the opening size of the valves, thereby controlling the flow rate of the liquid or gas when it flows out.

[0025] 3. The present invention is equipped with a flat washer, an elastic washer, a check spring, an iron core return spring, and a sealing return spring, which play a buffering role during the opening and closing of the solenoid valve assembly, thereby improving the service life of the solenoid valve island. At the same time, the check spring, the iron core return spring, and the sealing return spring can reset the check valve core, the moving iron core, and the iron core seal inside the solenoid valve assembly after the solenoid valve assembly is de-energized, so that the upper and lower inlets of the flow channel are blocked, preventing liquid or gas in the flow pipeline from flowing into the inlet area through the check assembly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall appearance structure of a four-valve solenoid valve island according to the present invention.

[0027] Figure 2 This is a top view schematic diagram of the overall structure of a four-valve solenoid valve island according to the present invention;

[0028] Figure 3 This is a schematic diagram of the flow pipeline section of a four-valve solenoid valve island according to the present invention.

[0029] Figure 4 This is a cross-sectional schematic diagram of a solenoid valve assembly of a four-valve solenoid valve island according to the present invention.

[0030] Figure 5 This is another schematic diagram of the flow pipeline of a four-valve solenoid valve island according to the present invention;

[0031] Figure 6 This is a schematic diagram of the components of the solenoid valve body of a four-valve solenoid valve island according to the present invention.

[0032] Figure 7 This is a schematic diagram of some components in the inlet area of ​​a four-valve solenoid valve island according to the present invention.

[0033] Figure 8 This is a schematic diagram of the check valve assembly of a four-valve solenoid valve island according to the present invention.

[0034] In the diagram: 1. Valve body; 2. Solenoid valve assembly; 3. First pressure transmitter; 4. Second pressure transmitter; 5. Silencer; 11. Flow line; 12. First outlet; 13. Second outlet; 14. Pipeline inlet; 15. Third outlet; 16. Fourth outlet; 17. First plug; 18. Second plug; 21. Solenoid valve body; 22. Inlet area; 23. Check valve assembly; 24. First solenoid valve; 25. Second solenoid valve; 26. Third solenoid valve 27. Fourth solenoid valve; 211. Valve cover; 212. Coil assembly; 213. Stationary iron core; 214. Elastic washer; 215. Flat washer; 216. Nut; 217. Flow channel; 218. Through hole; 221. Iron core return spring; 222. Moving iron core; 223. Iron core seal; 224. Sealing return spring; 225. Main valve core; 231. Check seal; 232. Check valve core; 233. Check spring; 234. Check washer. Detailed Implementation

[0035] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a four-valve solenoid valve island:

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the solenoid valve island includes a valve body 1, a solenoid valve assembly 2, a first pressure transmitter 3, a second pressure transmitter 4, and a silencer 5. A flow path 11 is provided inside the valve body 1. The first pressure transmitter 3 is fixedly connected to the valve body 1 and communicates with the flow path 11. The second pressure transmitter 4 is fixedly connected to the valve body 1 and communicates with the flow path 11. The silencer 5 is fixedly connected to the valve body 1. Four solenoid valve assemblies 2 are provided. Each solenoid valve assembly 2 includes a solenoid valve body 21, an inlet area 22, and a check valve assembly 23. The solenoid valve body 21 is inserted into the valve body 1 and is fixedly connected to it. The inlet area 22 and the check valve assembly 23 are disposed within the valve body 1. The inlet area 22 is inserted into the solenoid valve body 21. The inlet region 22 is connected to the solenoid valve body 21. The check valve assembly 23 is snapped into place by the inlet region 22 and the valve body 1. The four solenoid valve assemblies 2 are divided into a first solenoid valve 24, a second solenoid valve 25, a third solenoid valve 26, and a fourth solenoid valve 27. The first pressure transmitter 3, the check valve assembly 23 of the first solenoid valve 24, and the inlet region 22 of the third solenoid valve 26 are connected through a flow pipe 11. The check valve assembly 23 of the third solenoid valve 26, the check valve assembly 23 of the fourth solenoid valve 27, and the silencer 5 are connected through a flow pipe 11. The inlet region 22 of the first solenoid valve 24 and the inlet region 22 of the second solenoid valve 25 are connected through a flow pipe 11. The second pressure transmitter 4, the check valve assembly 23 of the second solenoid valve 25, and the inlet region 22 of the fourth solenoid valve 27 are connected through a flow pipe 11.

[0038] When solenoid valve assembly 2 is closed, inlet region 22 and check assembly 23 are not connected. When solenoid valve assembly 2 is open, liquid or gas flows sequentially through inlet region 22 and check assembly 23 in flow line 11. Check assembly 23 prevents liquid or gas from flowing from check assembly 23 to inlet region 22 when solenoid valve assembly 2 is open and closed. First pressure transmitter 3, check assembly 23 of first solenoid valve 24, and inlet region 22 of third solenoid valve 26 are connected through flow line 11. Check assembly 23 of third solenoid valve 26, check assembly 23 of fourth solenoid valve 27, and silencer 5 are connected through flow line 11. Inlet region 22 of first solenoid valve 24 and second solenoid valve 25 are connected through flow line 11. The inlet area 22 is connected through the flow pipeline 11. The inlet area 22 of the second pressure transmitter 4, the check assembly 23 of the second solenoid valve 25, and the fourth solenoid valve 27 are also connected through the flow pipeline 11. By opening and closing some of the valves in the first solenoid valve 24, the second solenoid valve 25, the third solenoid valve 26, and the fourth solenoid valve 27, the flow path of the liquid or gas in the flow pipeline 11 is changed, realizing the switching control of multiple pipelines to adapt to different usage scenarios and improve the versatility of the solenoid valve island. The silencer 5 is used to reduce the noise generated when the liquid or gas flows in the flow pipeline 11, providing a quiet working environment for the operator. Abnormal noises can be heard in time when the equipment is abnormal, thus improving work safety.

[0039] like Figure 2 and Figure 3 As shown, the flow pipeline 11 is provided with a first outlet 12, a second outlet 13, and a pipeline inlet 14. The first outlet 12 is connected to the first pressure transmitter 3, the second outlet 13 is connected to the second pressure transmitter 4, and the pipeline inlet 14 is connected to the inlet area 22 of the first solenoid valve 24 and the inlet area 22 of the second solenoid valve 25.

[0040] When the input device supplies liquid or gas to the actuator connected to the first outlet 12 via the solenoid valve island, the first solenoid valve 24 opens, and the second solenoid valve 25, the third solenoid valve 26, and the fourth solenoid valve 27 close. The liquid or gas enters the flow pipeline 11 from the pipeline inlet 14, passes through the first solenoid valve 24, the first pressure transmitter 3, and the first outlet 12 in sequence, and enters the actuator. When the actuator connected to the first outlet 12 finishes its operation, the third solenoid valve 26 opens, and the first solenoid valve 24, the second solenoid valve 25, and the fourth solenoid valve 27 close. The liquid or gas in the actuator flows out of the solenoid valve island via the first pressure transmitter 3, the third solenoid valve 26, and the silencer 5 in sequence. When the input device supplies liquid or gas to the actuator connected to the second outlet 13 via the solenoid valve island, the second solenoid valve 25 opens, the first solenoid valve 24, the second solenoid valve 25, the third solenoid valve 26, and the fourth solenoid valve 27 close. When the third solenoid valve 26 and the fourth solenoid valve 27 are closed, liquid or gas enters the flow pipeline 11 from the pipeline inlet 14, passes through the second solenoid valve 25, the second pressure transmitter 4, and the second outlet 13 in sequence, and flows into the actuator. When the actuator connected to the second outlet 13 finishes its operation, the fourth solenoid valve 27 opens, and the first solenoid valve 24, the second solenoid valve 25, and the third solenoid valve 26 close. The liquid or gas in the actuator flows out of the solenoid valve island through the second pressure transmitter 4, the fourth solenoid valve 27, and the silencer 5 in sequence. The first pressure transmitter 3 and the second pressure transmitter 4 monitor and provide feedback on the flow rate of the liquid or gas. After receiving the feedback, the operator adjusts the current of the first solenoid valve 24, the second solenoid valve 25, the third solenoid valve 26, and the fourth solenoid valve 27 to change the valve opening size, thereby controlling the flow rate of the liquid or gas when it flows out.

[0041] like Figure 3 As shown, the flow pipeline 11 is provided with a third outlet 15 and a fourth outlet 16. The third outlet 15 is connected to the first pressure transmitter 3, the check assembly 23 of the first solenoid valve 24 and the inlet area 22 of the third solenoid valve 26. A first plug 17 is provided at the third outlet 15 and is fixedly connected to the valve body 1. The fourth outlet 16 is connected to the second pressure transmitter 4, the check assembly 23 of the second solenoid valve 25 and the inlet area 22 of the fourth solenoid valve 27. A second plug 18 is provided at the fourth outlet 16 and is fixedly connected to the valve body 1.

[0042] The first plug 17 and the second plug 18 block the third outlet 15 and the fourth outlet 16 respectively, preventing liquid or gas leakage in the flow pipeline 11 and preventing external impurities from entering the flow pipeline 11 and contaminating the liquid or gas; during the factory inspection of the solenoid valve island, a pressure gauge can be connected to measure the pressure of the flow pipeline 11 to ensure safety and stability.

[0043] like Figure 4 and Figure 6As shown, the solenoid valve body 21 includes a valve cover 211, a coil assembly 212, a stationary iron core 213, an elastic washer 214, a flat washer 215, and a nut 216. The bottom end of the valve cover 211 is inserted into the upper end face of the valve body 1, and the valve cover 211 and the valve body 1 are fixedly connected. The upper end of the valve cover 211 is inserted into the coil assembly 212. One end of the stationary iron core 213 is sequentially inserted into the coil assembly 212 and the valve cover 211. The stationary iron core 213 and the valve cover 211 are welded together. The nut 216 and the stationary iron core 214 are connected together. The other end of 3 is threaded. The flat washer 215 is set in the groove at the top of the coil component 212. The elastic washer 214 is set between the flat washer 215 and the nut 216. The nut 216 and the valve cover 211 snap the elastic washer 214, the flat washer 215 and the coil component 212 together. The inlet area 22 is inserted into the valve cover 211 from the bottom end of the valve cover 211. Part of the inlet area 22 is fixedly connected to the bottom end of the stationary iron core 213, and part of the inlet area 22 is slidably connected to the valve cover 211.

[0044] The elastic washer 214 and the flat washer 215 provide buffering during the opening and closing of the solenoid valve assembly 2, reducing damage caused by impact and improving the service life of the solenoid valve island. When the coil component 212 is energized, it generates a magnetic field that attracts some components in the inlet area 22. At this time, the liquid or gas in the flow pipe 11 flows through the inlet area 22 to the check component 23, which presses down some components in the check component 23 and then flows into another part of the flow pipe 11. By changing the magnitude of the current in the coil component 212, the opening and closing degree of the solenoid valve assembly 2 is controlled, thereby controlling the flow rate of the liquid or gas in the flow pipe 11.

[0045] like Figure 4 and Figure 7 As shown, the inlet region 22 includes a core return spring 221, a moving core 222, a core seal 223, a sealing return spring 224, and a main valve core 225. One end of the core return spring 221 is fixedly connected to the bottom end of the stationary core 213, and the other end of the core return spring 221 is inserted into the moving core 222. The core return spring 221 and the moving core 222 are fixedly connected. The moving core 222 is inserted into the valve cover 211 from the bottom end of the valve cover 211, and the moving core 222 and the valve cover 211 are slidably connected. The iron core seal 223 is disposed inside the bottom end of the moving iron core 222, and the iron core seal 223 and the moving iron core 222 are slidably connected. The sealing return spring 224 is disposed inside the bottom end of the moving iron core 222, one end of the sealing return spring 224 is fixedly connected to the moving iron core 222, and the other end of the sealing return spring 224 is fixedly connected to the iron core seal 223. The main valve core 225 is inserted into the valve cover 211 from the bottom end of the valve cover 211, and the main valve core 225 and the valve cover 211 are engaged.

[0046] When liquid or gas in the flow pipe 11 needs to flow from the inlet area 22 through the check assembly 23 into another part of the flow pipe 11, the coil component 212 is energized. Under the pressure of the liquid or gas and the electromagnetic attraction, the moving iron core 222 and the iron core seal 223 are lifted. The liquid or gas in the flow pipe 11 flows through the inlet area 22 to the check assembly 23. Some components in the check assembly 23 are pushed down under the pressure of the liquid or gas. The liquid or gas flows into the check assembly 23 and then flows through the flow pipe 11 to other components. When the solenoid valve assembly 2 is closed, the coil component 212 is de-energized, and the iron core return spring 221 and the sealing return spring 224 rebound, respectively resetting the moving iron core 222 and the iron core seal 223. The components in the check assembly 23 are also automatically reset. At this time, the liquid or gas in the flow pipe 11 cannot flow into the inlet area 22 through the check assembly 23.

[0047] like Figure 4 As shown, a vertical flow channel 217 is provided at the bottom of the main valve core 225. The upper inlet of the flow channel 217 is blocked by the iron core seal 223, and the lower inlet of the flow channel 217 is blocked by the check valve assembly 23.

[0048] like Figure 7 As shown, through holes 218 are provided on the four sides of the main valve core 225.

[0049] The flow channel 217 and through hole 218 are provided so that when the solenoid valve assembly 2 is energized and opened, the liquid or gas in the flow pipeline 11 can flow from the inlet area 22 to the check valve assembly 23. The liquid or gas will push down the components in the check valve assembly 23 and flow into another part of the flow pipeline 11, thereby changing the flow path of the liquid or gas in the flow pipeline 11 and flowing out from the designated outlet of the flow pipeline 11.

[0050] like Figure 4 and Figure 8 As shown, the check assembly 23 includes a check seal 231, a check valve core 232, a check spring 233, and a check washer 234. The check washer 234 is disposed at the bottom end of the flow pipeline 11. One end of the check spring 233 is fixedly connected to the upper end face of the check washer 234, and the other end of the check spring 233 is fixedly connected to the lower end face of the shoulder of the check valve core 232. The bottom end of the check valve core 232 passes through the check washer 234, and the check valve core 232 and the check washer 234 are slidably connected. The check seal 231 is disposed inside the upper end of the check valve core 232, and the upper end face of the check seal 231 blocks the lower inlet of the flow channel 217.

[0051] When liquid or gas in the flow pipe 11 needs to flow from the inlet area 22 through the check assembly 23 into another part of the flow pipe 11, the coil component 212 is energized. The liquid or gas in the flow pipe 11 enters the main valve core 225 through the through hole 218. Under the pressure of the liquid or gas and the electromagnetic attraction, the moving iron core 222 and the iron core seal 223 are lifted up, and then flow through the upper inlet of the flow channel 217 to the check valve core 232. The check valve core 232 is pushed down under the pressure of the liquid or gas, and the check spring... When 233 is compressed, the inlet at the lower end of the flow channel 217 opens, and liquid or gas flows to other components through the flow pipe 11. When the solenoid valve assembly 2 is closed, the coil component 212 is de-energized, and the check spring 233, the iron core return spring 221, and the sealing return spring 224 rebound, respectively resetting the check valve core 232, the moving iron core 222, and the iron core seal 223, so that the upper and lower inlets of the flow channel 217 are blocked. At this time, the liquid or gas in the flow pipe 11 cannot flow into the inlet area 22 through the check assembly 23.

[0052] The working principle of this invention is as follows: When the input device inputs liquid or gas to the actuator connected to the first outlet 12 through the solenoid valve island, the first solenoid valve 24 opens, and the second solenoid valve 25, the third solenoid valve 26, and the fourth solenoid valve 27 close. The liquid or gas enters the flow pipeline 11 from the pipeline inlet 14, and sequentially passes through the first solenoid valve 24, the first pressure transmitter 3, and the first outlet 12 before entering the actuator. When the actuator connected to the first outlet 12 finishes its operation, the third solenoid valve 26 opens, and the first solenoid valve 24, the second solenoid valve 25, and the fourth solenoid valve 27 close. The liquid or gas in the actuator flows out sequentially through the first pressure transmitter 3, the third solenoid valve 26, and the silencer 5. Solenoid valve island; when the input device inputs liquid or gas to the actuator connected to the second outlet 13 through the solenoid valve island, the second solenoid valve 25 opens, and the first solenoid valve 24, the third solenoid valve 26 and the fourth solenoid valve 27 close. The liquid or gas enters the flow pipeline 11 from the pipeline inlet 14, and flows into the actuator in sequence through the second solenoid valve 25, the second pressure transmitter 4 and the second outlet 13. When the actuator connected to the second outlet 13 finishes its operation, the fourth solenoid valve 27 opens, and the first solenoid valve 24, the second solenoid valve 25 and the third solenoid valve 26 close. The liquid or gas in the actuator flows out of the solenoid valve island in sequence through the second pressure transmitter 4, the fourth solenoid valve 27 and the silencer 5.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A four-valve solenoid valve island, characterized in that: A four-valve solenoid valve island, characterized in that: the solenoid valve island includes a valve body (1), a solenoid valve assembly (2), a first pressure transmitter (3), a second pressure transmitter (4), and a silencer (5); a flow pipeline (11) is provided inside the valve body (1); the first pressure transmitter (3) is fixedly connected to the valve body (1) and communicates with the flow pipeline (11); the second pressure transmitter (4) is fixedly connected to the valve body (1) and communicates with the flow pipeline (11); the second pressure transmitter (4) is fixedly connected to the valve body (1) and communicates with the flow pipeline (11). The pipeline (11) is connected, the silencer (5) and the valve body (1) are fixedly connected, and four solenoid valve assemblies (2) are provided. Each of the four solenoid valve assemblies (2) includes a solenoid valve body (21), an inlet area (22) and a check assembly (23). The solenoid valve body (21) is inserted into the valve body (1), and the solenoid valve body (21) and the valve body (1) are fixedly connected. The inlet area (22) and the check assembly (23) are located inside the valve body (1). The inlet area (22) is inserted into the solenoid valve body. (21), the inlet area (22) is connected to the solenoid valve body (21), the check assembly (23) is snapped into place by the inlet area (22) and the valve body (1), the four solenoid valve assemblies (2) are divided into a first solenoid valve (24), a second solenoid valve (25), a third solenoid valve (26) and a fourth solenoid valve (27), the first pressure transmitter (3), the check assembly (23) of the first solenoid valve (24) and the inlet area (22) of the third solenoid valve (26) are connected by a flow pipe (11), The check assembly (23) of the third solenoid valve (26), the check assembly (23) of the fourth solenoid valve (27) and the silencer (5) are connected through a flow line (11). The inlet area (22) of the first solenoid valve (24) and the inlet area (22) of the second solenoid valve (25) are connected through a flow line (11). The second pressure transmitter (4), the check assembly (23) of the second solenoid valve (25) and the inlet area (22) of the fourth solenoid valve (27) are connected through a flow line (11). The flow pipeline (11) is provided with a first outlet (12), a second outlet (13), and a pipeline inlet (14). The first outlet (12) is connected to the first pressure transmitter (3), the second outlet (13) is connected to the second pressure transmitter (4), and the pipeline inlet (14) is connected to the inlet area (22) of the first solenoid valve (24) and the inlet area (22) of the second solenoid valve (25). The solenoid valve body (21) includes a valve cover (211) and a stationary iron core (213). The inlet area (22) includes a core return spring (221), a moving core (222), a core seal (223), a seal return spring (224), and a main valve core (225). One end of the core return spring (221) is fixedly connected to the bottom end of the stationary core (213), and the other end of the core return spring (221) is inserted into the moving core (222). The core return spring (221) and the moving core (222) are fixedly connected. The moving core (222) is inserted into the valve cover (211) from the bottom end of the valve cover (211). The moving core (222) and the valve cover (211) slide... The moving connection is as follows: the iron core seal (223) is located inside the bottom end of the moving iron core (222), the iron core seal (223) and the moving iron core (222) are slidably connected, the sealing return spring (224) is located inside the bottom end of the moving iron core (222), one end of the sealing return spring (224) is fixedly connected to the moving iron core (222), and the other end of the sealing return spring (224) is fixedly connected to the iron core seal (223). The main valve core (225) is inserted into the valve cover (211) from the bottom end of the valve cover (211), and the main valve core (225) and the valve cover (211) are snapped together. The bottom end of the main valve core (225) is provided with a vertical flow channel (217). The upper inlet of the flow channel (217) is blocked by the iron core seal (223), and the lower inlet of the flow channel (217) is blocked by the check assembly (23).

2. The four-valve solenoid valve island according to claim 1, characterized in that: The flow pipeline (11) is provided with a third outlet (15) and a fourth outlet (16). The third outlet (15) is connected to the check assembly (23) of the first pressure transmitter (3) and the first solenoid valve (24) and the inlet area (22) of the third solenoid valve (26). A first plug (17) is provided at the third outlet (15). The first plug (17) is fixedly connected to the valve body (1). The fourth outlet (16) is connected to the check assembly (23) of the second pressure transmitter (4) and the second solenoid valve (25) and the inlet area (22) of the fourth solenoid valve (27). A second plug (18) is provided at the fourth outlet (16). The second plug (18) is fixedly connected to the valve body (1).

3. The four-valve solenoid valve island according to claim 2, characterized in that: The solenoid valve body (21) also includes a coil component (212), an elastic washer (214), a flat washer (215), and a nut (216). The bottom end of the valve cover (211) is inserted into the upper end face of the valve body (1), and the valve cover (211) and the valve body (1) are fixedly connected. The upper end of the valve cover (211) is inserted into the coil component (212). One end of the stationary iron core (213) is sequentially inserted into the coil component (212) and the valve cover (211). The stationary iron core (213) and the valve cover (211) are welded together. The nut (216) is connected to the other end of the stationary iron core (213). The threaded connection is provided. The flat washer (215) is located in the groove at the top of the coil component (212). The elastic washer (214) is located between the flat washer (215) and the nut (216). The nut (216) and the valve cover (211) engage the elastic washer (214), the flat washer (215), and the coil component (212). The inlet area (22) is inserted into the valve cover (211) from the bottom end. Part of the inlet area (22) is fixedly connected to the bottom end of the stationary iron core (213). Part of the inlet area (22) is slidably connected to the valve cover (211).

4. A four-valve solenoid valve island according to claim 3, characterized in that: The main valve core (225) has through holes (218) on its four sides.

5. A four-valve solenoid valve island according to claim 4, characterized in that: The check assembly (23) includes a check seal (231), a check valve core (232), a check spring (233), and a check washer (234). The check washer (234) is located at the bottom of the flow pipeline (11). One end of the check spring (233) is fixedly connected to the upper end face of the check washer (234), and the other end of the check spring (233) is fixedly connected to the lower end face of the shoulder of the check valve core (232). The bottom end of the check valve core (232) passes through the check washer (234). The check valve core (232) and the check washer (234) are slidably connected. The check seal (231) is located inside the upper end of the check valve core (232), and the upper end face of the check seal (231) blocks the lower inlet of the flow channel (217).

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